Boiler.



PATENTBD DBG. 5, 1905.

J. M. COLMAN. BOILER.

APPLIcuIoN HLnn JUNE a, .1905.

a sums-SHEET 1.

- w/TNEssEs:

pda/wmf.

PATENTBD DEG. 5, 1905 GOLMAN.

BOILBR.

APPLIoATIoN Hmm :un s. 1905.

3 SHEETS-SHEET 2.

v WIINESSEQ:

.s v y. Hman ATTORNEYS No. 806,524. I I PATBNTED DEG. 5, 1905.'

J. M. GOLMAN.

BOILER.

vAPPLICATION FILED JUNI: a, 1905.

3 SHEETS-SHEET 3.

Arron/vim UNITED, ysra'rns ,leninivTl orricn.

JAMES MoRToN coLMAN, OFEVERETT, wAsmNcroN.

Specification of Letters Patent.

Patented Dec. 5, 1905.

Application led June 3, 1906. Serial No. 263,598.v

` To all whom it may concern:

Be it known that I, JAMES MoR'roN GOLMAN, a citizen of the United States, and a resident of Everett, inthe county of Snohomish and State of Washington, have invented a new and lImproved Boiler, of which the following is a tion are to provide for improving the construction of boilers of this character, so as toy increase the economy in manufacture and operation and improve the eifectiveness thereof. The objects of the invention will be more specilically stated below. .Reference is to be hadv to the accompanying drawings, forming a part of this specification.

l' in which similar characters of referenceindicate corresponding parts inall the figures.

Figure 1 is a side View of a boiler embodying my improveme'nts with the outside magazine removed to show interior construction. Fig. 2 is a sectional view of the same-on the line 2 2 of Fig. 1. Fig. .3 isa sectional view on the line 3 3 of Fig. 2,.and Fig. 4 is a sectional View of a detail on an enlarged scale.

The boiler is shown as provided with a foundation brickwork'30', with a casing 31 there` for and with an Aasbestos lining 32. The cas.- ing ends at the top of the uptake in a smokestack 33, as usual. At the sides of the grate 3 4 are provided Water-legs 35, which communicate with side tubes 36 and form water-protected supports for the boiler. These side tubes are shown as being three in number on each side and are placed in an inclined position, as in my former patent, but with the ditferencethat the headers 37, which connect them at their upper and lower ends, are placed verticallyT instead of being located in alinement in an inclined plane. derstood that any desired number of headers and side tubes can be provided; but I have shown a convenientpconstruction. noticed that there is a space between the top side tube and the one below, which is sufficient to receive an additional side tube, if desired; but instead of that 'I have provided a central tube 38 and connected it with the two adjacent side tubes on each side by means of small tubes 39,A extending diagonallyacross the boiler. The two side tubes at the top are also connected by curvedtubes 40, extending along v together.

It will be un.

It will be the sides next to the lining. The headers are connected by longitudinal tubes 41. which are preferably inclined on an angle equal to that of the side tubes. (Jertain of the side tubes and headers are connected with the ones above or below byshort tubes 42, which provide the necessary communication for the circulation .0f Water.

From the parts so far described it will be seenthat an adequate connection is secured among the several largev tubes and headers formed in the boiler and that a great amount of heating surface isv secured. The steam formed in thevarious tubes is not impeded in any way, but naturally collects in the upper header 37,. fromwhich it passes through tubes 43 into a steam-dome 44, which is provided with a discharge-pipe 45.

A feature of construction'to which especial .y attention is directed is a strengthening device for the tubes 42. This is shown especially in Fig. 4.- A ferrule 46 is-mounted upon the outside of each tube 42, and the tubes above and below the short tubes are eliectively held apart by the ferrule. A rod or bolt 47 passes through each tube, and by means of spiders 48 and a tightening-nut 49 this bolt is adapted to securely hold the upper and lower tubes The strengthening features of this construction will be clearly obvious and need not be further explained.

An importantw` feature of the device is the lprovision of manholes 50 in the ends of the headers, side tubes, and steam-dome. This provides for the ready inspection and cleaning of the various parts of the device and is a matter-0f great convenience. Provision may also be made for ring from either end or and for blowing out soot from all sides.

Having thus described my inventioml claim as new and desire to secure by Letters Patent- 1. A water-tube boiler comprising two series of headers, two series of side pipes located at opposite sides-of the boiler and connected with said headers near the ends of the latter, and a central pipe located between said series of side pipes and at a point between the lplanes in which the latter are located.

2. A water-tube boiler, comprising two series of headers at opposite ends of the boiler,

two, series of inclined side pipes ofsubstantially the same size as the headers andv com- IIO municating with said headers, and a central pipe located in an inclined plane between the- Aplanes of certain of said side pipes and communicating with two headers.

3. A water-tube boiler, comprising six inclined side pipes in two series, there being a space between the upper two of each series, and a central pipe in said space.

4:. A water-tube boiler comprising a series of inclined side pipes upon each side of the boiler, an additional side pipe spaced from each of said series and located above them, and a central inclined pipe located between said two series of side pipes and at a point between the spaces in said series.

5. A Water-tube boiler comprising a series of tubes, and means for connecting said tu bes together, said means comprising a tube passing from one of the first-mentioned tubes to another, and a clamping means upon the inside of the second tube.

6. A water-tubeboiler comprising a series of tubes located adjacent to each other, and means for connecting said tubes together, said means comprising a tube passing from one of the first-mentioned tubes to another, a ferrule on the outside of said second tube, and a clam ping means upon the inside thereof.

7. A water-tube boiler, comprising a series of tubes one above the other, means for connecting said tubes together, said means comprising a short tube passing from one of the first=mentioned tubesto another, a ferrule on the outside of said short tube, and a clamping means upon the inside thereof.

8. A water-tube boiler, comprising a series of tubes one above the other, means for connecting said tubes together, said means comprising a short tube passing from one of the first-mentioned tubes to another, a ferrule on the outside of said short tube, and a clamping means upon the inside thereof; said clamping means comprising a bolt passing through the short tube, and a spider upon each end of the bolt bearing upon the surfaces of the tubes connected by the short tube.

9. A water-tube boiler comprising a series of tubes located adjacent to each other, means for connecting said tubes together, said means comprising a tube passing from one of the first-mentioned tubes to another, a ferrule on the outside of said second tube, a clamping means upon the inside thereof, said clamping means comprising a bolt passing through the second tube, and a spider upon each end of the bolt bearing upon the surfaces of the lirstmentioned tubes.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES MORTON COLMAN.

Witnesses:

J. A. KUHN, B. S. PETTYGROVE. 

